Re: Kernel errors for dme1737

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On 02/12/2014 10:39 PM, Jürgen Fuchsberger wrote:


On 02/12/2014 03:24 PM, Guenter Roeck wrote:
On 02/12/2014 04:05 AM, Jean Delvare wrote:
On Wed, 12 Feb 2014 03:54:44 -0800, Guenter Roeck wrote:
On 02/12/2014 03:07 AM, Jürgen Fuchsberger wrote:
i2cdump.txt


        0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
0123456789abcdef
00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
20: 36 00 c0 3a c4 80 27 80 ff ff ff ff ff ff ff ff    6.?:??'?........
30: ff ff ff 00 00 00 00 00 00 00 00 00 00 00 5c 8a    ..............\?
40: 0f db c0 20 ad d3 00 ff ad d3 ad d3 ad d3 81 7f    ??? ??..????????
50: 81 7f 81 7f ff ff ff ff ff ff ff ff 62 62 62 cb    ????........bbb?
60: cb cb e0 00 80 80 80 80 80 80 64 64 64 44 40 00    ???.??????dddD@.
70: ff ff ff 09 09 09 09 09 09 00 00 00 40 00 ec 10    ...??????...@.??
80: 7e a4 0e 00 d3 00 87 74 e0 00 4d 4d 0b 0b 0d 00    ~??.?.?t?.MM???.
90: 04 04 04 04 0c 0c 0c 5a f1 c0 af ad d3 9d c0 00    ???????Z???????.
a0: 00 00 0c 00 02 ff ff 0b 0b fe ff fe ff ff ff ff    ..?.?..???.?....
b0: ff 00 00 00 00 00 28 28 0e 0e 0f 0f 00 00 00 00    ......((????....
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

That looks normal for the chip as far as I can see, and there are
no errors.

The board supports IPMI. I would guess that the errors happen when the
native driver and IPMI attempt to access the SMBus at the same time.

Yes, that would explanin the problem.

As usual, my recommendation is to either use IPMI or native drivers but
not mix.

Agreed.

OK, how can I choose which driver to use?


Good question. Maybe Jean knows; I am just guessing.

Do you have any IPMI packages installed ?
Can you disable IPMI in the BIOS ?

Guenter


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